# Lexicon * **Slot**: The smallest time unit in the L1X blockchain, where one block is created every 0.5 seconds. * **Chunk**: A 20-second time interval consisting of 40 slots in the L1X blockchain, organizing blocks for efficient management and synchronization. * **Epoch**: A period in the L1X blockchain comprising consecutive 3 chunks, typically lasting for one minute, during which clusters propose blocks and facilitate network consensus. * **Cube:** A unit of time in the L1X blockchain that encompasses multiple epochs, typically lasting for three minutes, incorporating cluster shuffling and providing milestones for network analysis and planning. * **Radix:** a node that serves as an entry point for new nodes, providing network information, cluster assignment, and maintaining thresholds for participation. * **Validator**: a node that validates transactions, secures the network, and can be selected as block proposers through a pseudo-random algorithm based on the stake and other factors. * **Block Proposer:** a node responsible for creating new blocks and proposing them to the network for validation. * **Vigilant Node**: a node in a blockchain network that monitors transactions, and detects and reports malicious activity to the block proposer. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://l1x-sdk.gitbook.io/l1x-foundation/l1x-technology-explained/validator-nodes/lexicon.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.